Suspension device for insulators.



n. P. mcxsou & w. SCHAAKE. SUSPENSION DEVICE r03 msumons.

:INVENTORS Ray 2 Jackson 8 Iiam Schaake.

ATiORNEY UNITED STATES PATENT. OFFICE.

RAY I. JACKSON, 0F EDGEWOOD PARK, AND WILLIAM SCHAAKE, OF PITTSBURGH, PENNSYLVANIA, ASSIGNORS 'IO WESTINGHOUSE ELECTRIC AND MANUFACTURING COMPANY, A CORPORATION OF PENNSYLVANIA.

SUSPENSION DEVICE 1'03 INSULATORS.

Specification of Letters Patent.

Patented Dec. 4., 1917.

Application filed December 4, 1916. Serial No. 65,025.

To all whom it may concern:

Be it known that we, RAY P. JACKSON, a citizen of the United States. and a resident of .Edgewood Park, in the county of Allegheny and State of Pennsylvania, and Wu.-

-i.i.\.\i Sciiaanu, a citizen of the United States, and n iesident of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented a. new and useful Improvement in Suspension Devices for Insulators, of which the following. is a apecilication.

Our invention relates to suspension de vices and particularly to suspension devices for connecting insulating units that are used in high-potential electric systems.

()no object of our invention is to provide a. device of the above-indicatedclass the members of which shall be readily seuaraole without the use of tools but which shall be positively locked against unintentional disengagement.

Another object.- of our invention is to provide means for connecting,' insulating units which shall permit of cmisiderahlc relative movena-nt of the insulator parts without the disengagement thereof.

lleretol'ore, devices of this character have .hcen proposed but my invention provides a new and useful improvement therein that will more ellectively accomplish the aboverecited results.

Figure l of the accompanying drawing in a Side view, partially in elevation and partinll in section taken substantially on the line --I of Fig. 2, of a series of insulating units suspended by devices embodying our invention. Fig- 2 is an end elevational view of theconnecting means shown in Fig. 1; Fig. 3 is an end view, partially in section and partially in elevation, of the device shown in Fig. 2; Fig. 4 is a side elevational view of a connection such as we propose, in. the process of being asscmbledtand ll 5 is a side elevational view of 'a rod m'eniher and its associated connecting pin.

The insulator shown in tho drawing'comprises a plurality of insulating units 1 and 2 that ara'suspeaded from one another by a plurality of sus enaion devices. 8 and 4. Each of the insu ating units 1 and 2 is provided with n u wardlyextending, frastoconical portion 5 having external corrugations 6, and with a recess 7 having. internal portion .5 of an insulator and is secured thereto by cement 10 or any other suitable material. rlach connectingdevice is provided also with a rod member 11, the upper end of which is secured within the recess 7 by means of a suitable cementing material 12. The upper-end of the rod 11 is provided with a p urality of oppositely and out wardlvprojectiug portions 14 that are arranged in pairs, and each pair is positioned at right angles to the succeeding pair in order to moi. firmly engage the cementing material 12.

The cap member 9 is provided also with two internally-recessed upright portions 18 and 19. The recesses .20 and 21 therein are, of substantially rectangular shape (as illustrated in Fig. l and Fig. l) and ure'severally provided with a transverse groove 22. The outside wall of each of the recessed portions 20 and '21 is provided with a rectangular aperture .33.

Referring particularly to Fig. 5, the lower end of the rod member 11 is provided with a widened and flattened portion 24 having a.

-vided to interlock the rod member 11 with the cap niember 9.

A suspension member, such as we have herein (escribed, may be assembled by placing the rod member 11 in the opening 97 between the upright members 18 and 19 and inserting the pin member 26 in a manner to be described. When the members 9 and 1t occupy the relative positions shown in Fig. 4-, the apertures 23 of the upright members aullic'rently register with the aperture 25 of the rod member. to permitof the insertion of the in member 20 if the peaked-portion thereof is biased to one side of the vertical osition, as shown by the solid lines 26, in 'ig. 4; After the pin 26 has been inserted, the peaked ortion thereof is turned to a vertical position as shown hythe dotted lines I The 'members 9 and 11 may. be intentionally separated by forcing said members together as shown in Fig. 4 and by turning the pin 26 until the peaked portion thereof is biased to one side of the vertical position, 5 when the pin 26 may be laterally withdrawn.

It will be readily seen that the peaked portion of the pin 26 is normally caused to assume a vertical position because of its coto operation with the groove 22 and is secured,

therefor, against unintentional dislodgment. It will also be seen that this connection permits of considerable relative move ment of the connect-in" parts when they are 16 in a locked relation. This feature is highly desirable for suspension devices of the chap under consideration, as those skilled in the art will readily understand.

We do not wish to be restricted to the 20 specific structural details herein set forth since various modifications thereof may be ell'ectcd without departing from the spirit and scope of our inventionand we desire, therefore, that only such limitations shall be 26 imposed as are indicated in the appended claims.

We claim as our invention:

1. A suspension device comprising a cap member having spaced upright portions that 80 are provided with lateral perforations and transverse recesses. a rod member having a perforated blade-like portion that is adapted to be received between the said upright portions, and apin of modified cylindrical form 85 that is shaped to be received in said trans-' verse recesses only after havin been completely projected through the ateral perforations in said upright portions.

2. A sns )ension device comprising a pin 40 member 0 modified cylindrical form that is provided with a laterally projecting portion, a cap member having two upright numbers that are provided with lateral perlorations and recessed to receive the projecting portion of the pin member only when it is completel extended through said perforations and w iile the suspension device is in an operative position, and a rod member one end of which is flattened and cessed a rod member h ving a perforated blade-like portion that. is adapted to be received between said laterall extending portions, and a pm member 0 modified cylindrical form that is adapted to separably connect said cap to said rod member, said pm bem lnserted or W1thdrawn.only when the per orations in said upright members register with the perforation in said rod member and enga mg the transversely recessed portions on iy when completely projected through the perforations in said up right ortions.

4. '1 e combination with a plurality of suspended insulator units of a connecting means com risin a rod member havin a erforated iladed ike portion, a cap mom or aving a plurality of recessed upright portions, the tops of said recesses respectively having a transverse groove therein, and a )in member that is adapted to separably lock said rod member to said cap member and has a projecting portion that 15 adapted to engage the groove in said recessed portiouand to be maintained in a given position during normal operation of said connecting means.

In testimony whereof, we have hereunto subscribed our names this 30th day of Nov.,

RAY P. JACKSON.

WILLIAM SCHAAKE. 

